21861254 is an even 8-digits composite number following 21861253
and preceding 21861255 . In scientific notation, it is written as 2.1861254 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 10930626 positive integers (up to 21861254) that are relatively prime to 21861254.
21861254 has 4 divisors, whose sum is 32791884
The reverse of 21861254 is 45216812
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million eight hundred sixty-one thousand two hundred fifty-four
Scientific notation
2.1861254 × 10^7
Engineering notation
2.1861254 × 10^6
Prime Factorization
2 × 10930627
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21861254
Product of the distinct prime numbers
The prime factorization of 21861254 is 2 × 10930627.
Since it has a total of 2 prime factors.
6 , 2 , 89 , 65 , 290 , 643 , 2381 , 9173 , 34802 , 69042 , 244290 , 246293 , 6204997 , 6828985 , 27890560 , 32260776 , 804099397 , 858648172 , 8984684387 , 2433047618
n×2
43722508
n×3
65583762
n×4
87445016
n×5
109306270
n÷2
10930627
n÷3
7287084.6666667
n÷3
5465313.5
n÷5
4372250.8
n2
477914426452516
n3
1.0447808666943E+22
n4
2.2840219901144E+29
n5
4.9931584867476E+36
2 √n
4675.6019933266
3 √n
279.61364230002
4 √n
68.378373725372
5 √n
29.372101076104
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21861253
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21861254 can be divided by 4 positive divisors.
The sum of these divisors (counting 21861254) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011001001110000110
3
Ternary
1112010200000002
4
Quaternary
1103121032012
5
Quinary
21044030004
6
Senary
2100321302
8
Octal
123311606
10
Decimal
21861254
12
Duodecimal
73a3232
16
Hexadecimal
14d9386
20
Vigesimal
6gcd2e
36
Base36
d0k92
md5
edc435a168197953617987dc886ccd96
sha1
a728a340f92386eeca5452c005c455fb611cb914
sha256
5a4e2d20dc982ea2690f06e3760afead44a3e349e51bb7e429447cd3c20485f8
sha512
bebe67e54b48f407f1acb05afc4e446e7a09bd9011a62187545c8b440faa27d1b448895db7018c329808d514a498162b3bca34906023429658ea3020a9ce658a
ripemd-160
6a1db9a5fcd817d63290e87a5192dd50fe33d40a
Diameter
43722508
Circumference
137358309.92932
Area
1.5014124511878E+15
Volume
4.3763678605572E+22
Surface area
6.0056498047512E+15
Circumference
137358309.92932
Perimeter
87445016
Area
477914426452516
Diagonal
30916481.897283
Surface area
2867486558715096
Volume
1.0447808666943E+22
Space diagonal
37864802.645168
Perimeter
65583762
Area
2.0694301707147E+14
Altitude
18932401.322584
Surface area
2.0694301707147E+14
Volume
1.2312860594891E+21
Height
10305493.965761